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CN-224209413-U - Welding device for bridge construction

CN224209413UCN 224209413 UCN224209413 UCN 224209413UCN-224209413-U

Abstract

The application discloses a welding device for bridge construction, which relates to the technical field of bridge construction welding and comprises a base, wherein a main frame, two first supporting frames and two second supporting frames are arranged at the top of the base, the first supporting frames are respectively arranged at two sides of the main frame, the second supporting frames are respectively arranged at one side of the two first supporting frames far away from the main frame, a lifting frame is fixedly arranged at the top of the main frame, a sliding block is slidably arranged in the lifting frame, threaded rods are rotatably arranged on the upper inner wall and the lower inner wall of the lifting frame, threads of the sliding block are sleeved on the peripheries of the threaded rods, a mounting plate is fixedly arranged on the side surface of the sliding block, an arc buckle is fixedly arranged at one side of the mounting plate far away from the sliding block, and a welding gun is fixedly arranged in the arc buckle. According to the application, an operator can quickly position the welding gun to the optimal welding height through visual scale reading and simple calculation, the problems that the traditional mode depends on experience and the welding height is difficult to quantify are solved, and the welding quality of a welding line is improved.

Inventors

  • CHENG PENG
  • WANG NAN

Assignees

  • 陕西省交通规划设计研究院有限公司

Dates

Publication Date
20260508
Application Date
20260327

Claims (8)

  1. 1. The welding device for bridge construction is characterized by comprising a base (1), wherein a main frame (11), two first supporting frames (12) and two second supporting frames (13) are arranged at the top of the base (1), the first supporting frames (12) are respectively arranged at two sides of the main frame (11), the second supporting frames (13) are respectively arranged at one side, far away from the main frame (11), of the two first supporting frames (12), a lifting frame (2) is fixedly arranged at the top of the main frame (11), and a welding gun (5) is arranged on the lifting frame (2); The inner rings of the first supporting frame (12) and the second supporting frame (13) are respectively sleeved with a rotating ring (14) in a rotating mode, a positioning mechanism is fixedly arranged in the rotating rings (14), and the positioning mechanism comprises a plurality of arc clamping plates (35) used for clamping a pipeline; The positioning mechanism further comprises a connecting ring (3) arranged at the inner ring of the swivel (14), and a plurality of connecting columns (31) are fixedly arranged between the outer wall of the connecting ring (3) and the inner wall of the swivel (14); The device is characterized in that a driving mechanism for driving the swivel (14) to synchronously rotate is arranged on the first supporting frame (12), the driving mechanism comprises two outer tooth rings (4) which are respectively arranged on one back side of the first supporting frame (12), the outer tooth rings (4) are respectively fixedly connected with the corresponding swivel (14), a gear (41) is rotatably arranged on one side, away from the lifting frame (2), of the first supporting frame (12), and the gear (41) is respectively meshed with the corresponding outer tooth rings (4).
  2. 2. The welding device for bridge construction according to claim 1, wherein the bottoms of the main frame (11), the first supporting frame (12) and the second supporting frame (13) are fixedly provided with brackets (15), the brackets (15) are fixedly arranged on the base (1), and the first supporting frame (12), the second supporting frame (13) and the main frame (11) are coaxially arranged.
  3. 3. The welding device for bridge construction according to claim 1, wherein a sliding block (22) is slidably installed in the lifting frame (2), a threaded rod (21) is installed in the lifting frame (2) in a rotating mode, the sliding block (22) is arranged on the periphery of the threaded rod (21) in a threaded sleeve mode, a mounting plate (24) is fixedly installed on the side face of the sliding block (22), an arc-shaped buckle (25) is fixedly installed on one side, away from the sliding block (22), of the mounting plate (24), the inside of the arc-shaped buckle (25) is fixedly installed with a welding gun (5), the top end of the threaded rod (21) penetrates through the top wall of the lifting frame (2), a first knob (23) is fixedly connected to the top end of the threaded rod (21), a dial gauge (26) is arranged on the front face of the mounting plate (24), and a pointer (27) matched with the dial gauge (26) is fixedly installed on the front face of the lifting frame (2).
  4. 4. The welding device for bridge construction according to claim 1, wherein a guide rod (32) is fixedly installed on one side in the connecting ring (3), a bidirectional screw rod (33) is rotatably installed on the other side in the connecting ring (3), the top end of the bidirectional screw rod (33) penetrates through the connecting ring (3) and is fixedly connected with a knob II (34), the bidirectional screw rod (33) is parallel to the guide rod (32), an arc clamping plate (35) is in threaded connection with the bidirectional screw rod (33), and friction gaskets (36) are fixedly installed in arc grooves of the arc clamping plate (35).
  5. 5. The welding device for bridge construction according to claim 1, wherein the main frame (11) is rotatably provided with a connecting rod (42), and two ends of the connecting rod (42) respectively penetrate through the two first supporting frames (12) and are fixedly connected with the corresponding gears (41).
  6. 6. The welding device for bridge construction according to claim 1, wherein the second supporting frame (13) is provided with a conductive grounding mechanism, the conductive grounding mechanism comprises two conductive rings (6) arranged on opposite sides of the second supporting frame (13), the conductive rings (6) are fixedly connected with corresponding rotating rings (14), a plurality of conductive carbon brushes (61) are uniformly and fixedly arranged on opposite sides of the second supporting frame (13), and the conductive carbon brushes (61) are in sliding contact with the outer walls of the conductive rings (6).
  7. 7. The welding device for bridge construction according to claim 1, wherein the driving mechanism further comprises a driving motor (44) for providing driving force, a mounting frame (43) is fixedly mounted on the top of the base (1), the top of the mounting frame (43) is fixed with the driving motor (44), and the output end of the driving motor (44) is fixedly connected with the gear (41).
  8. 8. A welding device for bridge construction according to claim 3, wherein the bottom of the mounting plate (24) and the bottom end of the welding gun (5) are positioned on the same horizontal plane, and the initial positions of the bottom of the mounting plate (24) and the bottom end of the welding gun (5) are positioned on the central axis of the main frame (11).

Description

Welding device for bridge construction Technical Field The application relates to the technical field of bridge construction welding, in particular to a welding device for bridge construction. Background In modern bridge engineering, in particular to a large-span arch bridge, a cable-stayed bridge and a large pier stud structure, high-strength steel pipes or steel pipe concrete members are generally adopted as main bearing and force transmission components, the large steel pipes are welded according to actual requirements after being manufactured in a segmented manner in a factory, and the quality of the welding seam is directly related to the overall structural strength, bearing safety and long-term durability of the bridge, so that extremely high requirements are put on the uniformity, the accuracy and the reliability of the welding process. When the welding device is used for girth welding of bridge steel pipes, the height of a welding gun from a welding line completely depends on the experience of a welder, a specific welding distance height numerical value cannot be measured, the welding quality is affected by large human factors, and the welding quality of the welding line is poor. Disclosure of utility model In order to solve the problem that the welding quality is poor due to the fact that the height adjustment of a welding gun depends on experience and a quantification means is lacked in welding, the application provides a welding device for bridge construction. The welding device for bridge construction provided by the application adopts the following technical scheme: The welding device for bridge construction comprises a base, wherein a main frame, two first supporting frames and two second supporting frames are arranged at the top of the base, the first supporting frames are respectively arranged at two sides of the main frame, the second supporting frames are respectively arranged at one side, far away from the main frame, of the two first supporting frames, a lifting frame is fixedly arranged at the top of the main frame, and a welding gun is arranged on the lifting frame; The inner rings of the first support frame and the second support frame are respectively sleeved with a rotating ring in a rotating mode, a positioning mechanism is fixedly installed in the rotating rings, and the positioning mechanism comprises a plurality of arc clamping plates used for clamping a pipeline; the positioning mechanism further comprises a connecting ring arranged on the inner ring of the swivel, and a plurality of connecting columns are fixedly arranged between the outer wall of the connecting ring and the inner wall of the swivel; The driving mechanism comprises two outer tooth rings which are respectively arranged on one back side of the first supporting frame and fixedly connected with the corresponding rotating ring, a gear is rotatably arranged on one side, away from the lifting frame, of the first supporting frame, and the gear is respectively meshed with the corresponding outer tooth rings. Preferably, the bottom of the main frame, the bottom of the first supporting frame and the bottom of the second supporting frame are fixedly provided with brackets, the brackets are fixedly arranged on the base, and the first supporting frame, the second supporting frame and the main frame are coaxially arranged. Preferably, the inside slidable mounting of lift frame has the slider, and the threaded rod is installed to the lift frame internal rotation, and the slider thread bush is established at the threaded rod periphery, and the side fixed mounting of slider has the mounting panel, and one side fixed mounting that the slider was kept away from to the mounting panel has the arc buckle, and arc buckle is inside fixed with welder installation, and the roof of lift frame is run through on the top of threaded rod, and the top fixedly connected with knob of threaded rod is first, and the front of mounting panel is provided with the scale table, and the front fixed mounting of lift frame has the pointer with scale table matched with. Preferably, one side in the connecting ring is fixedly provided with a guide rod, the other side in the connecting ring is rotationally provided with a two-way screw rod, the top end of the two-way screw rod penetrates through the connecting ring and is fixedly connected with a second knob, the two-way screw rod is parallel to the guide rod, the arc clamping plate is in threaded connection with the two-way screw rod, and friction gaskets are fixedly arranged in arc grooves of the arc clamping plate. Preferably, the main frame is rotatably provided with a connecting rod, and two ends of the connecting rod respectively penetrate through the two first supporting frames and are fixedly connected with the corresponding gears. Preferably, the second supporting frame is provided with a conductive grounding mechanism, the conductive grounding mechanism comprises two conductive rings arranged on op